Centrifugal pumps are noisy
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The centrifugal pump operates normally when running without water, but it produces a very loud noise when tested with water. What could be the cause?
Idling? It’s not allowed, let’s see where the noise is coming from.
What kind of noise are you referring to? Is it noise caused by pipe vibration, or is there a grinding sound coming from the pump? Explain it in more detail so we can analyze the problem.
That’s too general; moreover, centrifugal pumps cannot run without load.
The centrifugal pump operates normally when running without water, but it produces a very loud noise when tested with water. What could be the cause? Is it a multi-stage pump? Could the noise be caused by poor performance of the pump’s balance tube or balance disc, resulting in excessive load on the pump during startup, which in turn leads to movement of the pump and significant wear on the shaft ends?
High noise—cavitation, vibration, friction
1. The foundation of the centrifugal pump is poor. 2. The centrifugal pump has poor dynamic balance; 3. The centrifugal pump is not axially aligned. 4. There is friction in the impeller. 5. There is air in the pump.
First, it is necessary to determine exactly which part of the body produces sound. Maybe the cover of your motor fan blade isn’t secured properly? Those working in the chemical industry need to first improve their ability to judge and analyze problems; at the very least, they should be able to describe problems clearly
Check whether the water supply is sufficient and whether the pump base is stable
What sound? Pipes? Pump vibration? Cavitation? In more detail